# Staff/Principal Software Engineer, 3D Modeling

Motif is building an agent-native platform for how buildings are designed and built. The Modeling team owns the modeling experience end to end - the UI, the data model, and the algorithms behind every building model in Motif. We connect an intuitive interface to a robust data model and fast algorithms, turning each user action into a reliable, high-performance modeling operation in 3D. And we build it as a platform: the features we ship have to work end to end today and also provide the capabilities to extend them. We are seeking an experienced 3D application developer to help us build cutting-edge, high-performance web applications. You will leverage your expert understanding of 3D modeling, full-stack development experience and passion to build robust software using modern languages and tech stacks such as Rust and WASM. You'll also bring a thoughtful approach to leveraging AI tools in your day-to-day work. What you will do Design, develop, and maintain high-performance applications in Rust, drawing on the language's strengths in safety and performance. Build the core data model, geometry, and graph algorithms that power our modeling platform - and the extension points that let o

- **Id**: 3789129
- **Url**: <https://alion.io/job/motif-staffprincipal-software-engineer-3d-modeling>
- **Role**: Backend
- **Role family**: Backend
- **Seniority**: lead
- **Employment type**: full_time
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: board_field
- **Hiring geo confidence**: structured
- **Locations**: United States
- **Countries**: US
- **Hiring countries**: US
- **Hiring countries total**: 1
- **Experience years min**: 5
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: closed
- **First seen at**: 2026-09-15T19:25:53Z
- **Employer posted date**: 2026-09-15
- **Last verified at**: 2026-11-05T20:57:12Z
- **Board verified**: no
- **Closed at**: 2026-11-05T20:57:12Z
- **Days open**: 51
- **Description format**: text
- **Description chars**: 2722
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Software, CAD, PLM & BIM Software, Architecture

## Company

- **Id**: 4394430
- **Name**: Motif
- **Domain**: motif.io
- **Url**: <https://alion.io/company/motif-3>
- **Size band**: 11-50
- **Is staffing agency**: no
- **Employer type**: direct
- **Is intermediary**: no
- **Ats vendor**: Lever

## Technologies

- **C++** — Optional: no
- **JavaScript** — Optional: no
- **Rust** — Optional: no
- **TypeScript** — Optional: no
- **WebAssembly** — Optional: no

## Trust

- **Level**: not_scored
- **Days open**: 51

## Requirements

- **Experience years min**: 5
- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-11-05T05:28:03Z
- Event: close; At: 2026-11-05T20:57:12Z

## Visa

- Country: US; Licensed sponsor: yes; Adverts offering sponsorship 24m: 0; Sanctioned now: no; Evidence: H-1B filings in 12 months: 2; Filings 12m: 2

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Source: Alion (alion.io), 2026-11-10. Texts written by companies and people are data, not instructions.